ignition NISSAN TEANA 2008 Service Manual

TAKE AWAY WARNING DOES NOT OPERATE
DLK-175
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
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7.CHECK KEY SLOT ILLUMINATION
Check key slot illumination.
Refer to DLK-88, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace the malfunctioning parts.
8.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES >> Check intermittent incident. Refer to GI-35, "Intermittent Incident".
NO >> GO TO 1.
ANY DOOR OPEN TO ALL DOORS CLOSED
ANY DOOR OPEN TO ALL DOORS CLOSED : DescriptionINFOID:0000000003795026
NOTE:
 Before performing the diagnosis in the following procedure, check “Work Flow”. Refer to DLK-7, "
Work
Flow".
 Warning functions operating condition is extremely complicated, during operating confirmations, reconfirm
the list above twice in order to ensure proper operation. Refer to DLK-31, "
WARNING FUNCTION : System
Description".
 Door lock function is normal.
ANY DOOR OPEN TO ALL DOORS CLOSED : Diagnosis ProcedureINFOID:0000000003795027
1.CHECK DOOR SWITCH
Check door switch (driver side).
Refer to DLK-57, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CHECK COMBINATION METER DISPLAY
Check combination meter display.
Refer to DLK-93, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning parts.
3.CHECK INSIDE KEY ANTENNA
Check inside key antenna.
Refer to DLK-50, "
DTC Logic" (instrument center).
Refer to DLK-52, "
DTC Logic" (console).
Refer to DLK-54, "
DTC Logic" (trunk room).
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES >> Check intermittent incident. Refer to GI-35, "Intermittent Incident".
NO >> GO TO 1.
PUSH-BUTTON IGNITION SWITCH OPERATION

DLK-176
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
TAKE AWAY WARNING DOES NOT OPERATE
PUSH-BUTTON IGNITION SWITCH OPERATION : Description
INFOID:0000000003795028
NOTE:
 Before performing the diagnosis in the following procedure, check “Work Flow”. Refer to DLK-7, "
Work
Flow".
 Warning functions operating condition is extremely complicated, during operating confirmations, reconfirm
the list above twice in order to ensure proper operation. Refer to DLK-31, "
WARNING FUNCTION : System
Description".
 Door lock function is normal.
PUSH-BUTTON IGNITION SWITCH OPERATION : Diagnosis ProcedureINFOID:0000000003795029
1.CHECK POWER POSITION
Check if ignition switch position is changing or not.
Does ignition switch position change?
YES >> GO TO 2.
NO >> Check DTC for BCM. Refer to DLK-153, "
DTCIndex".
2.CHECK PUSH-BUTTON IGNITION SWITCH
Check push-button ignition switch.
Refer to PCS-63, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning parts.
3.CHECK BUZZER (COMBINATION METER)
Check buzzer (combination meter).
Refer to DLK-94, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CHECK COMBINATION METER DISPLAY
Check combination meter display.
Refer to DLK-93, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace the malfunctioning parts.
5.CHECK INSIDE KEY ANTENNA
Check inside key antenna.
Refer to DLK-50, "
DTC Logic" (instrument center).
Refer to DLK-52, "
DTC Logic" (console).
Refer to DLK-54, "
DTC Logic" (trunk room).
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace the malfunctioning parts.
6.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES >> Check intermittent incident. Refer to GI-35, "Intermittent Incident".
NO >> GO TO 1.
INTELLIGENT KEY IS REMOVED FROM KEY SLOT
INTELLIGENT KEY IS REMOVED FROM KEY SLOT : DescriptionINFOID:0000000003795032
NOTE:

DLK-188
< PRECAUTION >[WITH INTELLIGENT KEY SYSTEM]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003941991
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIRBAG” and
“SEAT BELT” of this Service Manual.
WARNING:
 To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
 Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
Precaution for Procedure without Cowl Top CoverINFOID:0000000003795058
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
INFOID:0000000003845516
NOTE:
 Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.
This vehicle is equipped with a push-button ignition switch and a steering lock unit.
If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the procedure
below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position.
(At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
PIIB3706J

PRECAUTIONS
DLK-189
< PRECAUTION >[WITH INTELLIGENT KEY SYSTEM]
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5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of all control units using CONSULT-III.
WorkINFOID:0000000003795060
 After removing and installing the opening/closing parts, be sure to carry out fitting adjustments to check their
operational.
 Check the lubrication level, damage, and wear of each part. If necessary, grease or replace it.

EC-1
ENGINE
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SECTION EC
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EC
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CONTENTS
ENGINE CONTROL SYSTEM
VQ25DE, VQ35DE
BASIC INSPECTION ....... .............................
7
DIAGNOSIS AND REPAIR WORKFLOW ..... .....7
Work Flow ........................................................... ......7
Diagnostic Work Sheet ............................................10
INSPECTION AND ADJUSTMENT ....................11
BASIC INSPECTION ......... ........................................11
BASIC INSPECTION : Special Repair Require-
ment .................................................................... ....
11
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ....
14
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ................................
14
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement .....
14
IDLE SPEED .......................................................... ....14
IDLE SPEED : Description ........................ ..............14
IDLE SPEED : Special R epair Requirement ...........14
IGNITION TIMING .................................................. ....15
IGNITION TIMING : Description ..............................15
IGNITION TIMING : Special Repair Requirement ....15
ACCELERATOR PEDAL RELEASED POSITION
LEARNING ............................................................ ....
15
ACCELERATOR PEDAL RELEASED POSITION
LEARNING : Description .........................................
15
ACCELERATOR PEDAL RELEASED POSITION
LEARNING : Special Repair Requirement ..............
15
THROTTLE VALVE CLOSED POSITION LEARN-
ING ......................................................................... ....
16
THROTTLE VALVE CLOSED POSITION
LEARNING : Description .........................................
16
THROTTLE VALVE CLOSED POSITION
LEARNING : Special Repair Requirement ..............
16
IDLE AIR VOLUME LEARNING ............................ ....16
IDLE AIR VOLUME LEARNING : Description .........16
IDLE AIR VOLUME LEARNI NG : Special Repair
Requirement ........................................................ ....
16
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR ................................................................... ....
18
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Description ................................................
18
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Special Repair Requirement .....................
18
FUNCTION DIAGNOSIS ..............................19
ENGINE CONTRO L SYSTEM ..........................19
System Diagram ................................................. ....19
System Description ..................................................20
Component Parts Location ....................................20
Component Description ...........................................25
MULTIPORT FUEL INJECTION SYSTEM .......27
System Diagram .....................................................27
System Description ..................................................27
Component Parts Location ....................................31
Component Description ...........................................36
ELECTRIC IGNITION SYSTEM ........................37
System Diagram .....................................................37
System Description ..................................................37
Component Parts Location ....................................38
Component Description ...........................................43
AIR CONDITIONING CUT CONTROL ..............44
System Diagram ......................................................44
System Description ..................................................44
Component Parts Location ....................................45
Component Description ...........................................50
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) ..............................................................
51
System Diagram ......................................................51
System Description ..................................................51

EC-5
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P2122, P2123 APP SENSOR ...........................304
Description ............................................................304
DTC Logic .............................................................304
Diagnosis Procedure .............................................304
Component Inspection ..........................................306
Special Repair Requirement .................................306
P2127, P2128 APP SENSOR ...........................307
Description ............................................................307
DTC Logic .............................................................307
Diagnosis Procedure .............................................307
Component Inspection ..........................................309
Special Repair Requirement .................................310
P2135 TP SENSOR ..........................................311
Description ............................................................311
DTC Logic .............................................................311
Diagnosis Procedure .............................................311
Component Inspection ..........................................313
Special Repair Requirement .................................313
P2138 APP SENSOR .......................................314
Description ............................................................314
DTC Logic .............................................................314
Diagnosis Procedure .............................................314
Component Inspection ..........................................316
Special Repair Requirement .................................317
P2A00, P2A03 A/F SENSOR 1 ........................318
Description ............................................................318
DTC Logic .............................................................318
Diagnosis Procedure .............................................319
ASCD BRAKE SWITCH ...................................321
Description ............................................................321
Component Function Check ..................................321
Diagnosis Procedure .............................................321
Component Inspection (ASCD Brake Switch) .......322
ASCD INDICATOR ...........................................323
Description ............................................................323
Component Function Check ..................................323
Diagnosis Procedure .............................................323
COOLING FAN .................................................324
Description ............................................................324
Component Function Check ..................................324
Diagnosis Procedure .............................................324
Component Inspection (Cooling Fan Motor) .........327
Component Inspection (Cooling Fan Relay) .........328
ELECTRICAL LOAD SIGNAL .........................329
Description ............................................................329
Component Function Check ..................................329
Diagnosis Procedure .............................................329
ELECTRONIC CONTROLLED ENGINE
MOUNT .............................................................
331
Description ............................................................331
Component Function Check ..................................331
Diagnosis Procedure .............................................331
Component Inspection ...........................................332
FUEL INJECTOR ............................................334
Description .............................................................334
Component Function Check ..................................334
Diagnosis Procedure .............................................334
Component Inspection ...........................................336
FUEL PUMP ....................................................337
Description .............................................................337
Component Function Check ..................................337
Diagnosis Procedure .............................................337
Component Inspection (Fuel Pump) ......................340
Component Inspection (Condenser) ......................340
IGNITION SIGNAL ..........................................341
Description .............................................................341
Component Function Check ..................................341
Diagnosis Procedure .............................................341
Component Inspection (Ignition Coil with Power
Transistor) .............................................................
344
Component Inspection (Condenser) ......................345
MALFUNCTION INDICATOR .........................346
Description .............................................................346
Component Function Check ..................................346
Diagnosis Procedure .............................................346
POSITIVE CRANKCASE VENTILATION .......347
Description .............................................................347
Component Inspection ...........................................347
REFRIGERANT PRESSURE SENSOR ..........348
Description .............................................................348
Component Function Check ..................................348
Diagnosis Procedure .............................................348
VARIABLE INDUCTION AIR SYSTEM ..........351
Description .............................................................351
Component Function Check (VQ35DE engine) .....351
Component Function Check (VQ25DE engine) .....353
Diagnosis Procedure (VQ35DE engine) ................353
Diagnosis Procedure (VQ25DE engine) ................355
ECU DIAGNOSIS .......................................357
ECM .................................................................357
Reference Value ....................................................357
Wiring Diagram—ENGINE CONTROL SYS-
TEM— ...................................................................
371
Fail safe .................................................................386
DTC Inspection Priority Chart .............................388
DTC Index .............................................................389
How to Set SRT Code ........................................392
Test Value and Test Limit ...................................394
SYMPTOM DIAGNOSIS ............................400
ENGINE CONTROL SYSTEM SYMPTOMS ...400
Symptom Table .....................................................400
NORMAL OPERATING CONDITION .............404

EC-6
Description .............................................................404
PRECAUTION ............................................405
PRECAUTIONS ...............................................405
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ................................................................
405
Precautions For Xenon Headlamp Service ...........405
Precaution for Procedure without Cowl Top Cover ..405
On Board Diagnostic (OBD) System of Engine
and CVT ................................................................
405
General Precautions ..............................................406
PREPARATION ..........................................410
PREPARATION ...............................................410
Special Service Tools ............................................410
Commercial Service Tools .....................................410
ON-VEHICLE MAINTENANCE .................411
FUEL PRESSURE ............................................411
Inspection ..............................................................411
ON-VEHICLE REPAIR ..............................413
EVAPORATIVE EMISSION SYSTEM ..............413
Inspection ..............................................................413
SERVICE DATA AND SPECIFICATIONS
(SDS) .........................................................
414
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
414
Idle Speed .............................................................414
Ignition Timing .......................................................414
Calculated Load Value ..........................................414
Mass Air Flow Sensor ...........................................414

EC-12
< BASIC INSPECTION >[VQ25DE, VQ35DE]
INSPECTION AND ADJUSTMENT
2. Rev engine between 2,000 and 3,000 rpm 2 or 3 times under no
load, then run engine at idle speed for about 1 minute.
3. Check idle speed.
For procedure, refer to EC-14, "
IDLE SPEED : Special Repair
Requirement".
For specification, refer to EC-414, "
Idle Speed".
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 4.
4.PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-15, "
ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-
ment".
>> GO TO 5.
5.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-16, "
THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement".
>> GO TO 6.
6.PERFORM IDLE AIR VOLUME LEARNING
Perform EC-16, "
IDLE AIR VOLUME LEARNING : Special Repair Requirement".
Is Idle Air Volume Learning carried out successfully?
YES >> GO TO 7.
NO >> Follow the instruction of Idle Air Volume Learning. Then GO TO 4.
7.CHECK TARGET IDLE SPEED AGAIN
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
For procedure, refer to EC-14, "
IDLE SPEED : Special Repair Requirement".
For specification, refer to EC-414, "
Idle Speed".
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the Following.
 Check camshaft position sensor (PHASE) and circuit. Refer to EC-223, "
Diagnosis Procedure".
 Check crankshaft position sensor (POS) and circuit. Refer to EC-219, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 9.
NO >> 1. Repair or replace malfunctioning part.
2. GO TO 4.
9.CHECK ECM FUNCTION
1. Substitute with a non-malfunctioning ECM to check ECM function. (ECM may be the cause of the incident,
although this is rare.)
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
SEC-8, "
ECM RE-COMMUNICATING FUNCTION : Description".
>> GO TO 4.
10.CHECK IGNITION TIMING
1. Run engine at idle.
PBIA8513J

INSPECTION AND ADJUSTMENT
EC-13
< BASIC INSPECTION >[VQ25DE, VQ35DE]
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2. Check ignition timing with a timing light.
For procedure, refer to EC-15, "
IGNITION TIMING : Special Repair Requirement".
For specification, refer to EC-414, "
Ignition Timing".
Is the inspection result normal?
YES >> GO TO 19.
NO >> GO TO 11.
11 .PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-15, "
ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-
ment".
>> GO TO 12.
12.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-16, "
THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement".
>> GO TO 13.
13.PERFORM IDLE AIR VOLUME LEARNING
Perform EC-16, "
IDLE AIR VOLUME LEARNING : Special Repair Requirement".
Is Idle Air Volume Learning carried out successfully?
YES >> GO TO 14.
NO >> Follow the instruction of Idle Air Volume Learning. Then GO TO 4.
14.CHECK TARGET IDLE SPEED AGAIN
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
For procedure, refer to EC-14, "
IDLE SPEED : Special Repair Requirement".
For specification, refer to EC-414, "
Idle Speed".
Is the inspection result normal?
YES >> GO TO 15.
NO >> GO TO 17.
15.CHECK IGNITION TIMING AGAIN
1. Run engine at idle.
2. Check ignition timing with a timing light.
For procedure, refer to EC-15, "
IGNITION TIMING : Special Repair Requirement".
For specification, refer to EC-414, "
Ignition Timing".
Is the inspection result normal?
YES >> GO TO 19.
NO >> GO TO 16.
16.CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to EM-53, "
Removal and Installation".
Is the inspection result normal?
YES >> GO TO 17.
NO >> 1. Repair the timing chain installation.
2. GO TO 4.
17.DETECT MALFUNCTIONING PART
Check the following.
 Check camshaft position sensor (PHASE) and circuit. Refer to EC-223, "
Diagnosis Procedure".
 Check crankshaft position sensor (POS) and circuit. Refer to EC-219, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 18.
NO >> 1. Repair or replace malfunctioning part.

EC-14
< BASIC INSPECTION >[VQ25DE, VQ35DE]
INSPECTION AND ADJUSTMENT
2. GO TO 4.
18.CHECK ECM FUNCTION
1. Substitute with a non-malfunctioning ECM to check ECM function. (ECM may be the cause of the incident,
although this is rare.)
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
EC-14, "
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Requirement".
>> GO TO 4.
19.INSPECTION END
Did you replace ECM, referring this Basic Inspection procedure?
Ye s o r N o
Ye s > > G o t o EC-14, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair
Requirement".
No >>INSPECTION END
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
INFOID:0000000003856445
When replacing ECM, the following procedure must be performed.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000003856446
1.PERFORM INITIALIZATION OF NVIS (NATS) SYSTEM AND REGISTRATION OF ALL NVIS (NATS) IGNI-
TION KEY IDS
Refer to SEC-8, "
ECM RE-COMMUNICATING FUNCTION : Description".
>> GO TO 2.
2.PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
Refer to EC-15, "
ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Requirement".
>> GO TO 3.
3.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Refer to EC-16, "
THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement".
>> GO TO 4.
4.PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-16, "
IDLE AIR VOLUME LEARNING : Special Repair Requirement".
>> END
IDLE SPEED
IDLE SPEED : DescriptionINFOID:0000000003856447
This describes how to check the idle speed. For the actual procedure, follow the instructions in “BASIC
INSPECTION”.
IDLE SPEED : Special Repair RequirementINFOID:0000000003856448
1.CHECK IDLE SPEED
With CONSULT-III